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在特殊岩土地区，如多年冻土、膨胀土、软土、湿陷性黄土等地区，钢筋混凝土圆管涵或盖板涵由于地基或基础沉降引起涵洞不均匀沉降而导致涵洞破坏，应用波纹管涵洞则完全可以解决因地基变形导致的涵洞破坏。

￥76015383189556孙女士hskunpeng0082024-04-29 11:06:52